hardware issues with traktor s4 mk3

Hello all I am having issues with my hardware where after being connected to my laptop for 30mins or so not in use it will become unresponsive I also get sometimes which is embarrassing is the sound gets almost I would say corrupted makes horrible sounds while DJ then have to switch to different deck. If I restart it sorts the issues out but for only a sort time basically it is on its way out got it just over 3 years ago question is do i get another one or do I part ways with NI i feel like spending £800 again and it only lasting 3 years not great.

I read a lot of people had same issues got new ones and no issues.

what do I do? any advice